+++ /dev/null
-/*
- * Copyright (C) 2007-2012 Argeo GmbH
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.argeo.jcr.ui.explorer.utils;
-
-import javax.jcr.Node;
-import javax.jcr.RepositoryException;
-
-import org.argeo.ArgeoException;
-import org.argeo.eclipse.ui.TreeParent;
-import org.argeo.jcr.ui.explorer.model.RepositoriesElem;
-import org.argeo.jcr.ui.explorer.model.RepositoryElem;
-import org.argeo.jcr.ui.explorer.model.SingleJcrNodeElem;
-import org.argeo.jcr.ui.explorer.model.WorkspaceElem;
-
-/** Centralizes some useful methods to build UIs with JCR */
-public class JcrUiUtils {
-
- /** Insure that the UI component is not stale, refresh if needed */
- public static void forceRefreshIfNeeded(TreeParent element) {
- Node curNode = null;
-
- boolean doRefresh = false;
-
- try {
- if (element instanceof SingleJcrNodeElem) {
- curNode = ((SingleJcrNodeElem) element).getNode();
- } else if (element instanceof WorkspaceElem) {
- curNode = ((WorkspaceElem) element).getRootNode();
- }
-
- if (curNode != null
- && element.getChildren().length != curNode.getNodes()
- .getSize())
- doRefresh = true;
- else if (element instanceof RepositoryElem) {
- RepositoryElem rn = (RepositoryElem) element;
- if (rn.isConnected()) {
- String[] wkpNames = rn.getAccessibleWorkspaceNames();
- if (element.getChildren().length != wkpNames.length)
- doRefresh = true;
- }
- } else if (element instanceof RepositoriesElem) {
- doRefresh = true;
- // Always force refresh for RepositoriesElem : the condition
- // below does not take remote repository into account and it is
- // not trivial to do so.
-
- // RepositoriesElem rn = (RepositoriesElem) element;
- // if (element.getChildren().length !=
- // rn.getRepositoryRegister()
- // .getRepositories().size())
- // doRefresh = true;
- }
- if (doRefresh) {
- element.clearChildren();
- element.getChildren();
- }
- } catch (RepositoryException re) {
- throw new ArgeoException(
- "Unexpected error while synchronising the UI with the JCR repository",
- re);
- }
- }
-
- /**
- * Insure that a model element is inline with the underlying data by
- * cleaning the corresponding subtree and building it again.
- */
- public static void forceRebuild(TreeParent element) {
- // TODO implement this method if needed.
- }
- /**
- * Workaround to get the alias of the repository that contains the given
- * element. As we cannot browse the UI tree upward we recursively browse it
- * downward until we find the given element
- * */
- // public static String getRepositoryAliasFromITreeElement(
- // NodeContentProvider ncp, Object element) {
- // RepositoryNode repositoryNode = null;
- // if (element instanceof RepositoryNode)
- // return ((RepositoryNode) element).getName();
- // else if (element instanceof RepositoryRegister)
- // throw new ArgeoException(
- // "Cannot get alias for a repository register");
- //
- // // Get root elements
- // Object[] elements = ncp.getElements(null);
- //
- // try {
- // for (int i = 0; i < elements.length; i++) {
- // if (elements[i] instanceof Node) {
- // Node curNode = (Node) elements[i];
- // if (curNode.isNodeType(ArgeoTypes.ARGEO_USER_HOME)) {
- // // Do nothing, we'll find the node in the "normal" tree
- // // and
- // // get corresponding alias this way round
- // } else
- // throw new ArgeoException(
- // "Normal nodes should not be at the root of NodeTreeViewer");
- // } else if (elements[i] instanceof RepositoryRegister) {
- // RepositoryRegister repositoryRegister = (RepositoryRegister) elements[i];
- // Map<String, Repository> repositories = repositoryRegister
- // .getRepositories();
- //
- // for (String name : repositories.keySet()) {
- // boolean found = isElementInCurrentTreePart(
- // ncp,
- // new RepositoryNode(name, repositories.get(name)),
- // (Node) element);
- // if (found)
- // return name;
- // }
- // } else
- // throw new ArgeoException(
- // "Unexpected object class at the root of NodeTreeViewer");
- // }
- // } catch (RepositoryException re) {
- // throw new ArgeoException(
- // "Unexpected error while retrieving Alias name", re);
- // }
- // return null;
- // }
- //
- // /** implements the recursivity */
- // private static boolean isElementInCurrentTreePart(NodeContentProvider
- // ncp,
- // Object parentElement, NodParente searchedElement) {
- // boolean found = false;
- // if (parentElement instanceof WorkspaceNode) {
- // WorkspaceNode wn = (WorkspaceNode) parentElement;
- // Object[] children = wn.getChildren();
- // int i = children.length - 1;
- // while (!found && i >= 0) {
- // found = isElementInCurrentTreePart(ncp, children[i],
- // searchedElement);
- // }
- // return found;
- // } else if (parentElement instanceof RepositoryNode) {
- // RepositoryNode rn = (RepositoryNode) parentElement;
- // Object[] children = rn.getChildren();
- // int i = children.length - 1;
- // while (!found && i >= 0) {
- // found = isElementInCurrentTreePart(ncp, children[i],
- // searchedElement);
- // }
- // return found;
- // } else {
- // Node node = (Node) parentElement;
- // if (node.equals(searchedElement))
- // return true;
- // NodeIterator ni;
- // try {
- // ni = node.getNodes();
- // while (!found && ni.hasNext()) {
- // found = isElementInCurrentTreePart(ncp, ni.nextNode(),
- // searchedElement);
- // }
- // } catch (RepositoryException e) {
- // throw new ArgeoException("unexpected erreur while recursively"
- // + " recovering RepositoryNode for selected object", e);
- // }
- //
- // return found;
- // }
- // }
-}
projects / lgpl / argeo-commons.git / blobdiff